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H. WEBSTER.

SUPPORT FOR FURNACE WALLS. I APPLICATION FILED NOV-22.1915. 1 ,3 1 1 A7, Patented July 29, 1919.

2 SHEETS-SHEET l- 4 ATTORNEYS.

THE COLUMBIA PLANOGRAPH c0.. WASHINGTON, D. c.

H. WEBSTER.

SUPPORT FOR FURNACE WALLS.

APPLICATION FILED NOV. 22. 1915.

1,3 1 1,4?6. Patented July 29, 1919.

2 SHEETS-SHEET 2.

WITNESS: IIWENTOR ATTORNEYJ.

THE COLUMBIA PLANOGRAPH 50.. WASHING-TON, b. c.

saarns PATENT FFIC-E.

nosnawnnsrnie or-mon'rctanennw JERSEY, ASSIGNORJTO THE BABoooKa wrLcox convent.- or BAYONNE, JERSEY, A.- CORPORATION on NEW JERSEY.

surro'm ma FURNACE-WALLS;

Y4 Specification Of Let tersratenta P e J y2 s e r...- msdi-november 22, 1915". serial-Na 62,747.

To all whom it may concern."

Be it known that f, HOSEA WEBSTER, a citizen of the United States, residing at Montclair, in the county of Essex and State of New Jersey, have invented certain new and. useful Improvements. in Supports for Furnace-Walls, of which the following is a. specification.

My invention relates to a means for supporting the weight of the front wall of a boiler furnace used in connection with a Taylor or similar underfeed stoker. Experience has shown the necessity of setting boil ers, of the Babcock & Wilcox type, with the lower ends of the front headers ten or twelve feet above the boiler room floor. In furnaces up to twelve feet in width it is practical, to relieve the stoker of the weight of the front wall, by carrying such wall on a relieving arch, extending from side to side, but in furnaces of greater width the weight of the brickwork below the relieving arch is greater than the standard design of the stoker can carry. The construction applies to any boiler where a high wall is to be carried at the front of the setting and I do not propose to limit its use to Babcock & Wilcox boilers.

The purpose of the present invention is to provide a support for the front furnace wall, by which I am enabled to dispense with the relieving arch, and it will be understood by reference to the accompanying drawing in which Figure 1 is a vertical section, partly in elevation, through a boiler furnace to illustrate the application of the invention; Fig. 2 a front view of a portion of the device; and Fig. 3 a vertical section on the plane of the line 33 of Fig. 1. Similar reference numerals indicate similar parts in the several views.

Referring to the drawings the numeral 1 designates the front wall of the furnace of refractory material, and 2 the rear wall; 3 a portion of a bank of generating tubes, the front ends of which are expanded into the front headers 4. The boiler is shown as fired by a Taylor underfeed stoker, although any other type of underfeed stoker may be used. The stoker shown comprises a series of retorts having charging cylinders 5, all of which are connected to a hopper or hoppers 6. In each cylinder is a reciprocating plunger 5' which pushes the coal into the furnace. Between the retorts are air-boxes '2' of the'sto'ker mechanism are shown as sup- H ported: by struts 9 resting upon beams 10. The latter aresupported upon cross-beams 11. v The brick work of the front wall rests uponthe stoker ledge plate which plate extends across the upper part of the stoker, and consists, as shown in Fig. 3, of the top plates of the fuel magazines or retorts 5 between the twyer boxes 7 and the top plates 12 of said boxes, the wall thus terminating at the upper part of the stoker mechanisms. The side walls of the twyer boxes 7 are connected by integral webs 5 which rest upon vertical struts 13, said struts thus assisting to support the wall. The struts are support ed upon beams 10. The struts 13 are placed under the wall 1, and assist in supporting the wall, and are so placed as not to interfere with the stoker mechanisms. The struts are spaced at intervals from side to side along the front of the stoker and do not interfere with the carrying of a uniform bed of fire from side to side of the furnace.

By employing struts directly beneath the wall all of the weight of the wall can be carried from below, thus dispensing with the use of a relieving arch. Moreover, the struts provide a more substantial support, even where the front wall is not as high as ten or twelve feet, and where otherwise the re lieving arch could be practically employed.

Any suitable means may be employed for maintaining the alinement of the front wall 1, and preventing it from moving either inward or outward at the top.

What I claim and desire to secure by Let-- ters Patent of the United States is 1. A steam boiler furnace having a front wall,'an underfeed stoker mechanism upon a part of which said wall rests, said stoker mechanism having alternate twyer boxes and retorts and means for feeding coal through the retorts, and a plurality of struts underneath the stoker mechanism for supporting the same and the wall superimposed thereon.

2. A steam boiler furnace having a front wall, an underfeed stoker mechanism upon a part of which said wall rests, said stoker mechanism having alternate twyer boxes and retorts, means for feeding coal through the retorts, and a plurality of struts underneath the stoker mechanism for supporting the in line With said front Wall.

-3. A steam boiler furnace'having affront Wall, an underfeed stokermechanismupon a part of Which said Wall rests, said stoker; mechanism having alternate twyerhox'es and retorts and means for feeding coal through the retorts, and a' plurality of struts underneath the tWyer boxes and assisting to support the 'stoker mechanism and. the Wall superimposed thereon. a

4:. A steam boiler furnace having a front Wall, an underfeed stoker mechanism upon a part of which said Wall rests, said stoker mechanism having alternate twyer boxes and the stoker mechanism.

"stoker'mechanismior supporting the same "and the'vvall 'superlmposedthereomsaid supporting struts being underneath and in line In testimony whereof I hereunto "signed my name in the presence of tWo suhscribing witnesses.

Witnesses:

PERCY GQI ELIQ,"

'JgH. BROWN.

co ies 0111115 mm may be ob'tained m ave cents each, by addressing the qbmfin-ssi nertr ratentsf Wa snington, I). 0-."

IHEGSEA WEBSTER.

w th sald front Wall, and additional struts in I front of the 'front Wall and serving as additional supports for the projecting portion of 

